BI Data Hero vs SQLearn

BI Data Hero is a story-driven Power BI mastery test set in the realm of Veridium. 700+ challenges across five regions, every one verified against Microsoft Learn. ALETHEIA'S TOUR — FREE Start with a 10-challenge introduction by the narrator Aletheia. Meet all five region mentors, sample each discipline, then pick your first realm. No purchase required. FIVE REGIONS, FIVE DISCIPLINES • Shaping Rivers — Tame raw data with Power Query • Model Groves — Build data models and relationships • Measure Peaks — Master DAX formulas and calculations • Sight Towers — Create impactful visualisations • Governance Citadel — Govern the Power BI Service HOW IT WORKS Each region has 8 chapters with around 20 encounters per chapter. Your NPC guides — Maren, Callum, Fen, Lyra, Aelind, Torren, Seren, Idris, Kael and Renna — challenge you through story-driven dialogue and interactive encounters. Every answer links to official Microsoft Learn documentation. CHALLENGE TYPES Not just multiple choice. Fill-in-the-blank code, sequence builders, formula builders, decision trees, memory matches, rapid-fire rounds, error identification and more. CINEMATIC EXPERIENCE Region intro cutscenes, chapter transitions, and an original 120-track soundtrack across 6 themed radio stations. Also available on Spotify and Apple Music. GAME CENTER Global leaderboards (Total Score, Longest Streak, Chapters Cleared) and per-realm achievements. See where you rank among other Power BI practitioners. 5 MINUTES A DAY Short encounters designed for commutes, lunch breaks, evening study. Progress saves automatically. Pick up exactly where you left off. ONE-TIME PURCHASE, NEVER EXPIRES Aletheia's 10-challenge introduction is free for everyone. Unlock all 700+ challenges across all 5 regions and 40 chapters with a single €3.99 one-time purchase. No subscription. No renewals. Works offline once cutscenes are cached. Built by Power BI professionals for Power BI professionals. Every challenge verified against current Microsoft Learn documentation (March 2026). BI Data Hero is an independent educational product and is not affiliated with, sponsored by or endorsed by Microsoft Corporation. Microsoft, Power BI, DAX, Power Query and Microsoft Fabric are trademarks of Microsoft Corporation. Terms of use (EULA): https://bidatahero.com/terms-of-service Privacy policy: https://bidatahero.com/privacy-policy

SQLearn teaches SQL the way it actually works — by writing and running queries LEARN Structured lessons cover everything from basic SELECT statements to JOINs, aggregations, window functions, CTEs, and transactions. Lessons end with a short quiz and a direct shortcut into the Playground so you can try what you just learned. PLAYGROUND A SQL editor with syntax highlighting and a keyword toolbar built for iPhone. Write any query, pick a schema, and run it — results appear instantly. Choose from built-in schemas or create your own with custom seed data. EXERCISES Guided tasks built around database schemas. Write your solution, run it, and compare it against the expected result. Stuck? Reveal the model answer and see exactly where your query differed. WHO IS THIS FOR? – Beginners learning SQL from scratch – Anyone who want to refresh or deepen their SQL skills TECHNICAL – Built-in SQLite engine, no dependencies, fully offline – Syntax highlighting and keyword toolbar in the editor – Schema viewer with table structure on demand – Supports iOS 17 and later